Notes on Orchidaceae Plants distributed in Oki Islands, Shimane, Japan

Abstract

Orchidaceae, a family of the widespread flowering plants, is reported about 60 species from Shimane prefecture. More than 50% species of Shimane Orchidaceae plants were estimated distributed in Oki islands, an isolated archipelago about 80 km far from Shimane peninsula, and most of them are endangered species. We confirmed the geographical distribution of Orchid Plants in Oki Islands and discuss their conservation status.